Premium Kerrison laminectomy bone punch detrox punching and handle set.Hanggrips as rigid, bayonet or 360 degree rotatable version. The inserts in 20cm and 23cm length as normal, thin foot and with ejector in combination. Our die inserts are connected by default with a stainless steel wire rope to avoid confusion of the corresponding die inserts after dismantling, cleaning and sterilization. This is a registered patented system.